Adebisi Abdulmumin Adetayo

• BSc (Metallurgy & Materials Engineering) MSc, PhD (Materials & Manufacturing Engineering)
• Senior Lecturer at Ahmadu Bello University

The efficiency of self-healing microcapsule in restoring damages incurred by polymeric or composite materials is heavily dependent on modelling of encapsulation conditions to achieve optimized microcapsule with desired characteristics. This study modelled the effects of encapsulation conditions (core–shell ratio, agitation rate, and temperature) on...

This study focuses on optimizing double stir casting process parameters to enhance the tensile strength of hybrid composites comprising aluminum alloy, brown pumice, and coal ash, intended for brake disc applications. Analytical techniques including X-ray fluorescence, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy...

Response surface methodologies are useful in achieving optimum processing conditions in materials development. This study highlights a pedagogical approach where conceptual methods useful in project-based learning can be sustained in the development of composite materials. In the study, the central composite design (CCD) in response surface methodo...

In recent years, extensive research efforts have been dedicated to exploring materials with self-healing properties, both autonomously and non-autonomously. The ability of materials to autonomously repair damage offers significant advantages such as increased service life, enhanced product safety, and reduced replacement costs. This paper focuses o...

Aluminium metal matrix composites have been gaining traction in recent years due to their good mechanical properties and low weight. Particulate reinforcements for the improvement of its properties have been explored. This research aimed to determine the optimal composition of the reinforcement content (pumice powder and carbonated coal particles)...

Aluminium matrix composites, which are a subclass of metal matrix composites, have characteristics including low density, high stiffness and strength, better wear resistance, controlled thermal expansion, greater fatigue resistance, and improved stability at high temperatures. The scientific and industrial communities are interested in these compos...

The demand for high-performance materials has risen due to the advancement of production processes and technical systems. Since these materials will be exposed to extreme conditions like high temperatures, stresses, and wear, they must be developed with resilience as an objective. This study presents the optimization of a novel aluminum-based compo...

The unique property combination of Al/SiCp based composites make them very attractive for applications in automotive and aerospace industries. The choice of composite materials for these applications is directly influenced by their inherent properties which are a function of the processing route employed. Like other processing parameters, surface m...

The combination of properties of Al/SiC composites make them very attractive materials for applications in automotive and aerospace industries. Several techniques are used in developing Al/SiC composites but stir casting process is most commonly used because it is the simplest and cost effective technique. However, composites produced via stir cast...

In this study, influence of tempering temperatures on low-temperature impact toughness of carbon steels was investigated. Two sets of steel samples were machined to standard Charpy V-notched impact test dimension. The first and second sets were heated to an austenitizing temperature of 800 o C and 900 o C respectively for 1 hour and water quenched....

The high demand for environmentally friendly vehicles with improved properties such as low fuel consumption, high engine performance and low emission of toxic gases has led to the search for methods of improving the properties of exhaust manifold materials. The aim of this study is to develop grey cast iron exhaust manifold materials with nickel in...

Additive manufacturing (AM) technology refers to a set of emerging technologies that offer unique capabilities that conventional manufacturing methods cannot provide such as the ability to produce arbitrarily complex geometries without expensive customized tooling. This paper provides an overview on AM technologies for components production as well...

An investigation was carried out to study the effect of boron carbide (B4C) on the mechanical properties of ZA-27 alloy composites. The base alloy was reinforced with B4C particles of 30 ?m and the composite was produced by stir casting method. The as-cast samples consisting of varied weight percentage of 0, 2.5, 5, 7.5, and 10% amount of B4C were...

Particulate composite comprising of AA6061 reinforced silicon carbide is developed using stir casting process. The influence of casting process parameters are vital factors in determining optimum properties for composite materials. In this study, the optimum wear rate and hardness properties of AA6061/SiCp were determined considering the influence...

The present study aims to examine the fracture mechnism of silicon carbide particle (SiCp) reinforced aluminium matrix composite (AMC) material with 1 wt% addition of magnesium is fabricated using the stir casting process. The aluminium composite (Al-Mg/SiCp) is investigated for fatigue life and impact strength considering reinforcement weight frac...

The influence of process parameter in stir casting play a major role on the development of aluminium reinforced silicon carbide particle (Al-SiCp) composite. This study aims to investigate the influence of process parameters on wear and density properties of Al-SiCp composite using stir casting technique. Experimental data are generated based on a...

In this study, Taguchi design of experiment approach has been applied to assess wear behaviour of TiC composite coatings deposited on AISI 4340 steel substrates by novel powder preplacement and TIG torch melting processes. To study the abrasive wear behaviour of these coatings against alumina ball at 600° C, a Taguchi's orthogonal array is used to...

Tungsten inert gas (TIG) torch is one of the most recently used heat source for surface modification of engineering parts, giving similar results to the more expensive high power laser technique. In this study, ceramic-based embedded composite coating has been produced by precoated silicon carbide (SiC) powders on the AISI 4340 low alloy steel subs...

The aim of this study is to investigate the influence of stirring speed on stir casting synthesis of 15 wt% silicon carbide particle reinforced aluminium alloy (SiCp-6061 Al) composite. The composite samples were produced at different stirring speed of 300, 500 and 700 rpm. However, the processing temperature and time are maintained at 800 °C and 1...

Process parameters in stir casting play a major role on the development of aluminium reinforced silicon carbide particle (Al-SiCp) composite. This study aims to investigate the influence of process parameters on wear and density properties of Al-SiCp using the stir casting technique. Experimental data are generated based on a four-factors-five-leve...

In this study, silicon carbide particle (SiCp) reinforced aluminium matrix composite (AMC) material with 1 wt% addition of magnesium is fabricated using the stir casting process. The aluminium composite (Al-Mg/SiCp) is investigated for fatigue life and impact strength considering reinforcement weight fraction and influence of temperature on fractur...

Laser cladding is the most important surface coating technique, widely used due to its capability of producing metal-matrix ceramic composite surfaces with reasonable hardness, corrosion and wear resistances. However, laser surface treatment technique is limited by several factors, such as expensive manufacturing procedure and precision control of...

There is an increasing interest in the tribology community for developing high-performance composite coatings to meet severe tribological conditions in advanced mechanical systems which require high operating temperature and long life. In the present work, powder preplacement and tungsten inert gas (TIG) torch melting techniques have been employed...

The influence of reinforcement particle size variation plays a major role on the properties of Al–SiCp composite. Therefore, this study aim to investigate the mechanical and wear performance of single particle size (SPS) and multiple particle size (MPS) Al–SiCp composite prepared by stir casting process. The SPS comprises three categories; fine (15...

Lightweight aluminium composite possesses the potential requirement for modern technological applications due to its inherent and superior properties over monolithic materials. This study compares both mechanical and wear behaviour of single particle size (SPS) and multiple particle size (MPS) reinforced 6061 Al-20 wt% SiCp composite. The composite...

There is an ongoing need in tribology community for developing high performance composite coating to control friction and wear under severe conditions of modern dry-sliding system which requires high operating temperature and long life. The present work is an attempt to employ powder preplacement and tungsten inert gas (TIG) torch melting technique...

Stir casting process parameters play a major role on the development of aluminium reinforced silicon carbide particle (SiCp) composite. This study aims to investigate the influence of process parameters on wear and density properties of Al-SiCp using the stir casting technique. Series of experimental data are generated based on a four-factors-five-...

The influence of processing parameters on the development of aluminium (AA6061) reinforced silicon carbide particle (SiCp) composite play a major role in determining its characteristics properties. This study aims to investigate the effect of process parameter on the wear and density properties of Al-SiCp using the stir casting technique. Series of...

Metal matrix composites are attractive light weight materials with potential attributes to substitute automotive materials without sacrifing performance. This present study aims to investigate the wear characteristics of aluminium (Al) 6061 reinforced with silicon carbide particles (SiCp) of three (3) different particle sizes. The reinforcement con...

Titanium (Ti-6Al-4V) alloy is very attractive for many applications due to its high strength-to-weight ratio and high corrosion resistance. Even then, with these attractive properties, it has poor shear strength and surface wear properties. This study is therefore undertaken to investigate the effect of sliding parameters on the surface wear behavi...

Application of composite material for brake rotor has the potential to improve braking performance due to its attractive properties when compared to cast iron material. Aluminium composite has superior specific strength, higher coefficient of thermal expansion/heat dissipation rate with low mass density. These characteristics possess the tenden...

Biodiesel serves as the best alternative candidate to diesel fuel for diesel engines as a result of its ability to function as substitute to meet with the rising energy demand. Biodiesel is considered more environmentally friendly than fossil fuel because it is made from renewable resources and has lower emissions. This paper focuses on the triboco...

Application of composite material for brake rotor has the potential to improve braking performance due to its attractive properties when compared to cast iron material. Aluminium composite has superior specific strength, higher coefficient of thermal expansion/heat dissipation rate with low mass density. These characteristics possess the tendency t...

The application of light weight composite materials for automotive component influences performance as well as energy saving in automotive systems. In brake system, brake disc rotor is identified as a vital component which gradually halts the kinetic action in vehicles when the situation becomes unsafe due to undesirable conditions. Cast iron is wi...

This paper attempts to predict the effect of weight reduction on energy consumption and cost savings using an aluminium matrix composite automotive brake rotor. Mathematical models are established to evaluate the influence of weight reduction on material consumption, cost and energy savings. The study showed that a 50% weight reduction due to AMC b...

Metal matrix composites (MMCs) have become attractive for engineering structural applications due to their excellent specific strength property and are increasingly seen as alternative to the conventional materials particularly in the automotive industry. In this study, a historical background on the development and application of metal matrix comp...

The prediction of surface temperature for brake rotor is regarded as an important step in studying the brake system performance. The frictional heat generated on the rotor surface can influence excessive temperature rise which in turn leads to undesirable effects such as thermal elastic instability (TEI), premature wear, brake fluid vaporization (B...

Biodiesel as an alternative renewable fuel is increasingly been considered as blending components or replacement for conventional petroleum fuel. Although the acceptability of biodiesel in automotive application is relatively a successful story, it is an issue with regards to its materials incompatibility. When compared to diesel, biodiesel is more...

With 75 percent of fuel consumption relating directly to vehicle weight, potential weight reductions that can result in improved performance ratio and reduce CO2 emissions stimulate the application of lightweight materials. The substitution of aluminium matrix composite (AMC) for structural component of brake rotor is quite effective in lightening,...

The production of composite brake rotor for automotive application has grown steadily in recent years and is projected to show further growth in the nearest future. This composite automotive part undergoes casting or foundry processing such as mold preparation which is an essential component in the foundry industry. In this paper, the impact of the...